Hot water or steam boiler



E. J. LEE

HOT WATER on STEAM BOILER Filed July 23, 1940 2 Sheets-Sheet 1 Y m 2% 2 NW H ,r k, 2 7 W 7 NE 5 m b Sept. 29, 1942; EE

HOT WATER OR STEAM BOILER 2 Sheets-Sheet 2 Filed July 23, 1940 INVENTOR.

A TTORNEYS.

Patented Sept. 29, 1942 HIE HOT WATER R STEAM BOILER Elmer Jesse Lee, Bangor, Pa... assignor of onethird to Robert R. Schultz, Bangor, Pa.

Application July 23, 1940, Serial No. 347,004

1 Claim.

This invention relates to boiler construction, especially designed for hot water or steam heating plants, the primary object of the invention being to provide means to cause the water entering the boiler to be quickly heated, facilitating the rapid circulation of water or steam through the boiler and system associated therewith.

An important object of the invention is to provide a boiler of this character having means to retard the circulation of the incoming water at a point adjacent to the fire-box of the boiler, thereby rapidly heating the comparatively cool incoming water and preventing the mixing of the incoming water with the hot water of the boiler, until the incoming water reaches a predetermined temperature or a temperature which will not cool the water of the boiler to retard circulation thereof.

With the foregoing and other objects in view,

which will appear as the description proceeds,

the invention resides in the combination and arrangement of parts and in the details of constructien hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein described, may be made within the scope of what is claimed, without departing from the spirit of the invention.

Referring to drawings:

Figure l is a vertical sectional view through a boiler constructed in accordance with the invention, and taken on line I---! of Figure 2.

Figure 2 is a sectional view taken on line 2-2 of Figure 1.

Figure 3 is a transverse sectional view taken on line 33 of Figure 2.

Figure 4 is a sectional view taken on line 44 of Figure 1.

Figure 5 is a fragmental sectional View through a modified form of the invention.

Referring to the drawings in detail, the reference character 5 designates the outer wall of the boiler, and the reference character 6 designates the inner wall thereof, which is spaced from the outer wall, providing a compartment for the water to be heated in the boiler.

As shown, the inner wall of the boiler is provided with offset portions 7 extending around the entire inner wall.

The feed water pipes of the boiler are indicated by the reference character 8 and extend into the space between the outer wall 5 and inner wall 6 of the boiler, at a point adjacent to the bottom thereof, but in spaced relation therewith, as clearly shown by Figure 1 of the drawings.

\ Mounted within the boiler and disposed substantially intermediate the space between the outer and inner walls thereof, is a partitioning member 9 which completely encircles the main portion of the inner wall of the boiler, the lower end of the partitioning member 9 being spaced from the bottom 10 of the boiler. As clearly shown by Figure l of the drawings, the lower end of the partitioning member 9 is disposed above the feed Water pipes, so that water entering the space between the outer and inner walls of the boiler, will be directed inwardly against the inner wall 6, at a point adjacent to the fire-box ll of the boiler, or at a point where the boiler is the hottest.

Formed integral with the partitioning member 9, are ribs 12 which are substantially wide and extend appreciable distances into the offset portions 1, the inner edges of the ribs being spaced from the inner wall, providing irregular passageways from the bottom to the top of the boiler. Due to this construction, it will be seen that incoming water will take the path as indicated by the arrows in Figures 1 and 2 of the drawings, and circulate from the space between the inner surface of the partitioning member and inner 'wall 6 of the boiler, to the space between the outer surface of the partitioning member 9 and inner surface of the outer wall of the boiler, until the temperature of the feed water has reached a predetermined degree to circulate and mix with the heated water held in the upper portion of the boiler. The water held within the boiler and which has been heated, is therefore maintained at a high degree of temperature and is not cooled by the feed water which of course is cold, and which enters the boiler to replenish the supply.

In the form of the invention as shown by Figure 5 of the drawings, the outer wall of the boilei is indicated by the reference character [3 and the inner wall which is spaced from the outer wall is indicated by the reference character It.

A partitioning member i5 is mounted within the space between the outer wall l3 and inner wall It, dividing the space into passageways.

the water has reached a predetermined degree, whereupon the feed water which has become heated, will circulate with the water held at the upper end of the boiler.

While I have shown and described a hot water or steam boiler of rectangular formation, it is to be understood that the principles of the invention may be effectively carried out in circular or round boilers, without departing from the spirit of the invention.

In view of the foregoing detail description, a further detail description as to the operation of the boiler is believed to be unnecessary.

What is claimed is:

A boiler of the class described, comprising spaced outer and inner walls, the inner wall having inwardly extended offset portions providing vertically spaced horizontal grooves extending around the inner wall, vertical partitions mounted within the space between the outer and inner walls and spaced from the outer and inner walls, wide ribs extending inwardly from the partitions and disposed in the grooves in spaced relation with the walls of the grooves, providing an inner irregular passageway, and an outer passageway, a feed pipe adapted to direct water to the lower end of the passageways to flow upwardly through the irregular passageway and downwardly through the outer passageway, whereby the infiowing water is preheated on its upward passage ELMER JESSE LEE. 

